Quarter	US Dollars, sum over component sub-periods
2000-01-01	769190989.50000000
2000-04-01	145462288.10000000
2000-07-01	386661774.70000005
2000-10-01	850163630.19999990
2001-01-01	-62606704.00000000
2001-04-01	1527584122.00000000
2001-07-01	-243416666.99400000
2001-10-01	-155066066.10000000
2002-01-01	-648803809.10000000
2002-04-01	-486862869.30000000
2002-07-01	70726661.60000000
2002-10-01	600428869.69999990
2003-01-01	-301211586.50000000
2003-04-01	-342633317.83000000
2003-07-01	-227196374.90000000
2003-10-01	-454713507.90000004
2004-01-01	-426223856.40000000
2004-04-01	-310352782.08000000
2004-07-01	275996077.20000000
2004-10-01	239055275.00000000
2005-01-01	1168223695.30000000
2005-04-01	-443510449.00000000
2005-07-01	-888675298.60000000
2005-10-01	825352392.60000000
2006-01-01	-594157552.30000010
2006-04-01	-404224640.79999995
2006-07-01	868669467.30000000
2006-10-01	546201452.90000010
2007-01-01	-2793531713.40000000
2007-04-01	107726818.80000000
2007-07-01	298938442.25000000
2007-10-01	-534903056.79999995
2008-01-01	-451106163.90000004
2008-04-01	-419226597.00000000
2008-07-01	-1673702301.50000000
2008-10-01	-442804789.90000000
2009-01-01	1852216805.90000000
2009-04-01	2250391883.00000000
2009-07-01	-1958551608.90000000
2009-10-01	22894912.00000000
2010-01-01	-2531573544.20000000
2010-04-01	-525267743.60000000
2010-07-01	-5436949766.09999900
2010-10-01	-2844545801.70000030
2011-01-01	-1296707194.60000010
2011-04-01	400857685.27000000
2011-07-01	-220529642.00000000
2011-10-01	1028876241.20000000
2012-01-01	-416733290.77000000
2012-04-01	2041381244.20000000
2012-07-01	1541814528.56000020
2012-10-01	804361513.10000000
2013-01-01	410650940.00000000
2013-04-01	-20340128.00000000
2013-07-01	-517221722.90000004
2013-10-01	-2680591383.00000000
2014-01-01	736494260.50000000
2014-04-01	715638206.90000000
2014-07-01	1313673210.55000000
2014-10-01	-3269615618.89999960
2015-01-01	-349940453.00000000
2015-04-01	-113103055.70000000
2015-07-01	-966409159.19999990
2015-10-01	-2520700743.80000000
2016-01-01	838041642.00000000
2016-04-01	1821327067.00000000
2016-07-01	-856839871.40000000
2016-10-01	550260259.80000000
2017-01-01	-1956403624.20000000
2017-04-01	537366088.80000010
2017-07-01	1677640094.20000000
2017-10-01	773552378.50000000
2018-01-01	-2937022756.50000000
2018-04-01	-741042461.30000010